Local atomic structures of hematite nanoparticles studied with XAFS
Wu ZH(吴忠华); Guo L(郭林); Ju X(巨新); Wu, ZH; Guo, L; Ju, X; Li, QS; Zhu, HS
刊名JOURNAL OF SYNCHROTRON RADIATION
1999
卷号6期号:3页码:749-751
关键词nanoparticle XAFS hematite local atomic structures surface interface
学科分类Instruments & Instrumentation; Optics; Physics
DOI10.1107/S0909049598017051
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100039, Peoples R China ; IIT, Dept Biol Chem & Phys Sci, Chicago, IL 60616 USA ; Beijing Inst Technol, Coll Chem Engn & Mat Sci, Beijing 100081, Peoples R China
文章类型Article; Proceedings Paper
英文摘要Hematite nanoparticles which were coated, respectively, with sodium dodecyle benzene sulphonate (DBS) and cetyltrimethyl ammnonium bromide (CTAB) were synthesized by using microemulsion method in the system of water/toluene. The particle size and shape were characterized with transmission electron microscopy (TEM). The TEM results show that the nanoparticles take the shape of sphere with diameter of 5.0 mm and 6.0 nm for modified DBS and CTAB respectively. The local atomic structures of these nanoparticles were probed by using XAFS technique. Fe-K absorption spectra were collected at beam line 4W1B of BSRF. The local atomic structure in DBS-coated hematite was found to be similar with that in bulk hematite except the anharmonicity increasing, but about 0.04 Angstrom expansion of Fe-O bond length in CTAB-coated hematite. The interface/surface atomic configuration were compared and discussed.
类目[WOS]Instruments & Instrumentation ; Optics ; Physics, Applied
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics
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语种英语
WOS记录号WOS:000081221700224
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238423
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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Wu ZH,Guo L,Ju X,et al. Local atomic structures of hematite nanoparticles studied with XAFS[J]. JOURNAL OF SYNCHROTRON RADIATION,1999,6(3):749-751.
APA 吴忠华.,郭林.,巨新.,Wu, ZH.,Guo, L.,...&Zhu, HS.(1999).Local atomic structures of hematite nanoparticles studied with XAFS.JOURNAL OF SYNCHROTRON RADIATION,6(3),749-751.
MLA 吴忠华,et al."Local atomic structures of hematite nanoparticles studied with XAFS".JOURNAL OF SYNCHROTRON RADIATION 6.3(1999):749-751.
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